+3 Mechanical Speed Switch - SA-0611 - Synchro-Start SKU 41516 $1,004.00 Out of stock Quantity: 1 Add to Bag Product Details The Dyna SA-0611 is an exact OEM (formerly Synchro-Start) replacement now manufactured by QCC. GWA overspeed switch Trip setting SW1 = 3700-4600 RPM 10 Amps switch contacts Field Adjustable One switch point Save this product for later Favorite